1344646412129 has 2 divisors, whose sum is σ = 1344646412130. Its totient is φ = 1344646412128.

The previous prime is 1344646412119. The next prime is 1344646412147. The reversal of 1344646412129 is 9212146464431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1242894981904 + 101751430225 = 1114852^2 + 318985^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344646412129 - 2¹² = 1344646408033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1344646412119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672323206064 + 672323206065.

It is an arithmetic number, because the mean of its divisors is an integer number (672323206065).

Almost surely, 2^{1344646412129} is an apocalyptic number.

It is an amenable number.

1344646412129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344646412129 is an equidigital number, since it uses as much as digits as its factorization.

1344646412129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 47.

The spelling of 1344646412129 in words is "one trillion, three hundred forty-four billion, six hundred forty-six million, four hundred twelve thousand, one hundred twenty-nine".